Cycle lock



1611.9, 1945. v pPow 2,366,863

CYCLE LOCK Filed Jan; 14,1944

IINVENTOR. 6

Q4TTO A/EYJ' versebore H3 in the block 9 and being interchangeably oralternately cooperable with the two intersecting shaft openings l4; acylindrical casing 19 secured to the block 8 in central alinement withthe bore l8; and a show case type of pin tumbler locking cylinder 20slidable within the casing l9 and being secured to the push bolt I1. I

.The members 8, H] are preferably formed of durable metal and areprovided with coacting grooves 2| adapted to coact as shown, with acycle fork 22 or the like, and the casing l9 ing openings l5 arealineable so as to permit application or removal of the clamping screwswith the aid of a screw driver, only when the locking bars l6 are inreleased position pointing either upwardly as in Figs. 1, 2 and 3, or

downwardly in the opposite direction. .When the bars 16 ar in lookingposition as shown in Fig. 7, the slotted heads of the clamping screwsHare sealed from access through the holes 12, thus positively preventingremoval of the screws and of the locking a'ssemblage.

The screws ll, pivot shaft l3 and the locking rods or bars It should beformed of hard material such as steel, and the bars l6 should be firmlyattached to the protruding opposite ends of the shaft l3 so that thebars It will be disposed approximately radial with respect to the shaftaxis and parallel to each other. One of the transverse through openingsM at the center of the shaft I3 is disposed substantially parallel tobars l6, while the intersecting opening i4 is approximatelyperpendicular thereto. The show case type of lock is of old and wellknown construction wherein the cylinder lock or pin tumbler cylindermust be pushed into the tubular slotted casing [9 in order toautomatically place the bolt I! in looking position, and in which thebolt I1 and cylinder 20 are automatically retracted or released when akey of proper shape is applied to the locking cylinder 20. When thecylinder 20 and bolt l! are in,

retracted position as shown in Fig. 2, the shaft l3 isfree to rotaterelative to the block 8 within the bore 9; but when the cylinder 20 ispushed inwardly as in Figs. 4 and 5, the bolt 11 will enter and will belocked within the corresponding shaft opening I4, thus permittinglockingof the bars IS in either upright or horizontal position.

In order to apply the improved locking mechanism to a bicycle or otherassemblage with which the mechanism is to be associated, it is onlynecessary to position the shaft l3 asillustrated in Figs. 5 and 6, sothat the fastening screws l l are accessible for screw drivermanipulation. Th block 8 and clamping plate in may I Th lockingassemblage thus becomes an accessory permanently attached to thevehicle, and by manipulating the locking cylinder 20 manually in orderto push this cylinder and the bolt I! into locking position, or with theaid of a suitable'key in order to effect automatic retraction of thecylinder 20 and bolt [1, the locking bars or rods IE may be placedeither in inactive position as shown in solid lines in Figs. 1, 2, 3, 5and 6, or in active locking position as depicted in solid lines in Figs.4 and 7, and in dot-anddash lines in Fig. l. The locking mechanism mayhowever be just as readily removed upon withdrawal of the clampingscrews H, and does not obstruct free use of the vehicle when in inactiveposition.

From the foregoing detailed description it will be apparent that mypresent invention provides a simple, compact and durable cycle lockwhichcan be quickly and conveniently applied to or removed from a cyclewhen in inactive position as when the cycle is released for normal use,

but which provides a highly effective lock and cannot b removed Withoutdestruction when in active or locking position. The various parts of themechanism can obviously be manufactured at low cost with simple tools,and the block and shaft assemblage coacting with a standard show casetype of lock, provides extremely simple and strong means for retainingthe bars or rods It in various positions of adjustment, and forpreventing unauthorized use of the cycle to which the lock is attached.By rigidly attaching the locking assemblage to the vehicle, misplacementor loss of the lock is avoided, and the locking unit is normally out ofthe way and in no manner obstructs or interferes with the normal use ofthe vehicle. While the\improved formation of the shaft l3 with throughopenings l5 alineabl with the screw insertion holes I2 of the block 8permits quick attachment or removal of the unit, this formation alsopositively prevents removal of the lock assemblage when the vehicle islocked against propulsion,

and in actual practice the block 8 and plate It should be formed so asto normally expose as ing purposes but may also be advantageouslyemployed for diverse other purposes. The locking unit obviously presentsa neat and attractive appearance, and may be applied to either 'fork orto other parts of a cycle or similar structure.

It should b understood that it is not desired to limit this invention tothe exact details of construction or to the precise mode of use orapplication, herein shown anddescribed, for various modifications withinthe scope of the appended claims may occur to persons skilled in theart.

I claim: I

1. In combination, a supporting member, clamping means for attachingsaid member to a support, a pivot shaft journalled in said member andhaving therein intersecting transverse holes, a locking bar radiatingfrom each end of said shaft, and a push bolt alternately cooperable withsaid shaft holes to lock said bars in several diffrent radial positionsof adjustment'relative to the shaft axis.

2. In combination, a supporting block having a through bore, means forattaching said block to a support, a pivot shaft journalled in said boreand having intersecting medial transverse openings and ends projectingbeyondthe opposite ends of said block, locking bars radiating from theprojecting ends of said shaft, and a bolt a1- ternately cooperable withsaid shaft openings to lock said bars in different positions relative tothe shaft axis.

3. In combination, a supporting member having a bore and a holeextending transversely of said bore, a pivot shaft journalled in saidbore and having a transverse through opening alineable with said hole, afastening element for effecting attachment of said member to a supportand being insertible and removable and manipulable through said hole andopening only when in alined position, locking means radiating from saidshaft, and a, bolt cooperable with said shaft to look said means indifferent positions of, ad-

justment relative to the shaft axis.

4. In combination, a supporting block, a pivot shaft journalled in saidblock, means for clamp- 6. Incombination, a supporting block, apivotshaft journalled in said block and having several transverse openings inthe medial portion thereof, a clampingscrew manipulable through ot shaftextendin through said block and having through openings directed towardsaid plate ing said block to a support laterally of said shaft, lockingbars radiating from the opposite ends of said shaft, said shaft havingseveral radial openings formed in a medial portion thereof, a boltalternately movable into said openings to lock said bars in differentpositions radially of the shaft axis, and a reciprocable lock cylinderfor locking said bolt within said openings.

5. In combination, a supporting block, a pivot shaft journalled in saidblock and having sev eral transverse openings in the medial portionthereof, a clamping screw manipulable through one of said openings tofasten said block to a support, a locking bolt insertible in severalothers of said openings to lock said shaft in different positions ofadjustment, said screw being accessible formanipulation in only one ofsaid positions, and a reciprocable locking cylinder for holding saidbolt within said openings.

and also being provided with intersecting openings, locking barsradiating from the ends of said shaft, screws insertible and manipulablethrough said through openings to connect said block and plate, and abolt cooperable with said intersecting openings to locksaid shaft andbars in different positions of adjustment.

8. In combination, a supporting block, a clamping plate cooperable withsaid block, a pivot shaft extending through said block and havingthrough openings directed toward said plate and also being provided withintersecting openings, locking bars radiating from the ends of saidshaft, screws insertible and manipulable through said through openingsto connect said block and plate, and a bolt cooperable with saidintersecting openings to lock said shaft and bars indifferent positionsof adjustment, said screws being accessible only when said shaft is in apredetermined position with said bars inactive.

DAVID LIPPOW.

